Your cat's tail is talking are you listening? From flicks of frustration to swishes of overstimulation, tails can reveal so much about how your cat is feeling. #cats #catbehavior #bodylanguage Cat Tail Meanings TrustedHousesitters.com Why Do Cats Shake or Vibrate Their Tails? Vet Verified Reasons Explained Catster A cat's tail is a powerful form of communication that reveals its emotions and intentions. When the tail is erect and twitching, the cat is usually excited or happy, while a straight up